Firmware/opensbi
8
0
Fork 0
forked from Mirrors/opensbi
Code Pull Requests Activity

lib: Add possible hart status values

Browse Source 
SBI HSM extension defines possible hart status values in the
specification.

Define all possible status values. Add a helper function to
convert hart state to status because hart states are internal
to OpenSBI only and may not match the status values defined in
the specification.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Atish Patra
2020-02-11 17:32:38 -08:00
committed by Anup Patel
parent b677a9b8d6
commit 5b4824082f
3 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
lib/sbi/sbi_hsm.c
View File

@@ -14,6 +14,7 @@
#include <sbi/sbi_bits.h>
#include <sbi/sbi_console.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_ecall_interface.h>
#include <sbi/sbi_hart.h>
#include <sbi/sbi_hsm.h>
#include <sbi/sbi_init.h>
@@ -30,6 +31,30 @@ struct sbi_hsm_data {
atomic_t state;
};
int sbi_hsm_hart_state_to_status(int state)
{
int ret;
switch (state) {
case SBI_HART_STOPPED:
ret = SBI_HSM_HART_STATUS_STOPPED;
break;
case SBI_HART_STOPPING:
ret = SBI_HSM_HART_STATUS_STOP_PENDING;
break;
case SBI_HART_STARTING:
ret = SBI_HSM_HART_STATUS_START_PENDING;
break;
case SBI_HART_STARTED:
ret = SBI_HSM_HART_STATUS_STARTED;
break;
default:
ret = SBI_EINVAL;
}
return ret;
}
int sbi_hsm_hart_get_state(struct sbi_scratch *scratch, u32 hartid)
{
struct sbi_hsm_data *hdata;